This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 5 | 1 |
| 6 | 26 |
| 7 | 459 |
| 8 | 7037 |
| 9 | 102075 |
| 10 | 1457407 |
| 11 | 20922336 |
| 12 | 305907060 |
| 13 | 4594540541 |
| 14 | 71326622649 |
| 15 | 1149849718045 |